Singular Fact. Were the atmosphere at all times of a uniform temperature, there never would be hail, rain, nor snow. The water absorbed by it in evaporation from the sea and the earth's surface would descend in an imperceptible vapor, or cease to be absorbed by the air when it was once fully saturated. The absorbing power of the "atmosphere, and consequently its capacity to retain humidity, is proportionally greater in warm than in cold air. The air near the surface of the earth is warmer than it is in the region of the clouds. The higher the ascent from the earth,the colder does the air become. Hence the perpetual snow on very high mountains in the hottest climate.